oj.uz

Submission #1113394

# Submission time Handle Problem Language Result Execution time Memory
1113394 2024-11-16T14:04:02 Z lucascgar Fortune Telling 2 (JOI14_fortune_telling2) C++17
4 / 100
 57 ms 11244 KB 
#include <bits/stdc++.h>

using namespace std;

/*
foco no cara da esquerda ativado ou nn

query so na esquerda: desligo
na direita: mudo

query so na esquerda:
    desliga esquerda
    nn mexe em direita

depois de query na esquerda ele sempre vai ficar com direita ativa
olhar ultima query na esquerda
depois só importam queries na direita
*/

typedef pair<int, int> pii;
typedef pair<long long, long long> pll;
typedef pair<long double, long double> pdd;

const int MAXN=2e5+10, MAXTT = 2*MAXN, BIG = 1e9+10;

pii c[MAXN];
bool ac[MAXN];

int seg[4*MAXN], lg[MAXN];

void build(int id, int il, int ir, vector<pii> &op){
    if (il==ir){
        seg[id]=op[il-1].second;
        return;
    }
    int m = (il+ir)/2;

    build(2*id, il, m, op);
    build(2*id+1, m+1, ir, op);

    seg[id] = max(seg[2*id], seg[2*id+1]);

}

int qry(int id, int il, int ir, int l, int r){
    if (il>r || ir<l) return -BIG;
    if (il>=l && ir<=r) return seg[id];

    int m = (il+ir)/2;
    return max(qry(2*id, il, m, l, r), qry(2*id+1, m+1, ir, l, r));
}

pii lst[MAXN];


int bit[MAXN];

int bqry(int p){
    int ss = 0;
    while (p>0){
        ss += bit[p];
        p -= p&-p;
    }
    return ss;
}

void bup(int p, int v, int sz){
    while (p<=sz){
        bit[p]+=v;
        p += p&-p;
    }
}

int p[MAXN];

signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);

    int n, k;
    cin >> n >> k;
    int a, b;
    vector<pair<int, pii>> comp;
    for (int i=0;i<n;i++){
        cin >> a >> b;
        if (a<b) ac[i]=1;
        else swap(a,b);
        c[i] = {a,b}, lg[i]=b;
        comp.push_back({b,{i, 0}});
    }

    vector<pii> op(k+1);
    for (int i=0;i<k;i++){
        cin >> p[i+1];
        op[i] = {p[i+1], i+1};
        comp.push_back({p[i+1], {i+1, 1}});
    }

    sort(op.begin(), op.end());

    build(1, 1, k, op);

    for (int i=0;i<n;i++){
        int l, r;
        pii srch = {c[i].second, -1};
        r = lower_bound(op.begin(), op.end(), srch) - op.begin(), srch = {c[i].first, -1}, l = lower_bound(op.begin(), op.end(), srch) - op.begin() + 1;

        if (l<=r) lst[i].first = qry(1, 1, k, l, r);
        lst[i].second = i;
    }

    sort(lst,lst+n);  // ordena por ultimo que importa

    // comprime qries com caras da direita
    sort(comp.begin(), comp.end());
    int cr = 1;
    for (int i=0;i<comp.size();i++){
        if (i>0 && comp[i].first != comp[i-1].first) cr++;

        if (comp[i].second.second) p[comp[i].second.first] = cr;
        else c[comp[i].second.first].second = cr;
    }

    int j = n-1;  // primeiro q nn pega

    for (int i=k;i>0&&j>=0;i--){
        // atualiza
        bup(cr-p[i]+1, 1, cr);

        while (j>=0 && lst[j].first == i){
            int am = bqry(cr-c[lst[j].second].second+1);
            // cerr << lst[j].second << ": " << am << " so " << ac[lst[j].second] << '\n';
            ac[lst[j].second] = (am%2 == 1);
            j--;
        }
    }
    while (j>=0){  // quem só pega no direito
        int am = bqry(cr-c[lst[j].second].second+1);
        ac[lst[j].second] ^= (am%2 == 1);
        // cerr << lst[j].second << ": " << am << " so " << ac[lst[j].second] << '\n';
        j--;
    }
    long long ss = 0;
    for (int i=0;i<n;i++){
        if (ac[i]) ss += c[i].first;
        else ss += lg[i];
    }

    cout << ss << '\n';

    return 0;
}

Compilation message

fortune_telling2.cpp: In function 'int main()':
fortune_telling2.cpp:117:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, std::pair<int, int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  117 |     for (int i=0;i<comp.size();i++){
      |                  ~^~~~~~~~~~~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6480 KB Output is correct
2 Correct 2 ms 6480 KB Output is correct
3 Correct 3 ms 6480 KB Output is correct
4 Correct 2 ms 6684 KB Output is correct
5 Correct 2 ms 6480 KB Output is correct
6 Correct 2 ms 6624 KB Output is correct
7 Correct 2 ms 6480 KB Output is correct
8 Correct 3 ms 6480 KB Output is correct
9 Correct 2 ms 6480 KB Output is correct
10 Correct 2 ms 6480 KB Output is correct
11 Correct 2 ms 6480 KB Output is correct
12 Correct 3 ms 6736 KB Output is correct
13 Correct 2 ms 6480 KB Output is correct

Subtask #2
0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6480 KB Output is correct
2 Correct 2 ms 6480 KB Output is correct
3 Correct 3 ms 6480 KB Output is correct
4 Correct 2 ms 6684 KB Output is correct
5 Correct 2 ms 6480 KB Output is correct
6 Correct 2 ms 6624 KB Output is correct
7 Correct 2 ms 6480 KB Output is correct
8 Correct 3 ms 6480 KB Output is correct
9 Correct 2 ms 6480 KB Output is correct
10 Correct 2 ms 6480 KB Output is correct
11 Correct 2 ms 6480 KB Output is correct
12 Correct 3 ms 6736 KB Output is correct
13 Correct 2 ms 6480 KB Output is correct
14 Correct 13 ms 7244 KB Output is correct
15 Correct 27 ms 7880 KB Output is correct
16 Correct 39 ms 8648 KB Output is correct
17 Correct 45 ms 11092 KB Output is correct
18 Correct 46 ms 11204 KB Output is correct
19 Correct 57 ms 11204 KB Output is correct
20 Correct 45 ms 11068 KB Output is correct
21 Correct 43 ms 11204 KB Output is correct
22 Correct 40 ms 10616 KB Output is correct
23 Correct 45 ms 10692 KB Output is correct
24 Correct 30 ms 10692 KB Output is correct
25 Correct 31 ms 10664 KB Output is correct
26 Correct 32 ms 10948 KB Output is correct
27 Correct 47 ms 11244 KB Output is correct
28 Correct 46 ms 11204 KB Output is correct
29 Incorrect 36 ms 11228 KB Output isn't correct
30 Halted 0 ms 0 KB -

Subtask #3
0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6480 KB Output is correct
2 Correct 2 ms 6480 KB Output is correct
3 Correct 3 ms 6480 KB Output is correct
4 Correct 2 ms 6684 KB Output is correct
5 Correct 2 ms 6480 KB Output is correct
6 Correct 2 ms 6624 KB Output is correct
7 Correct 2 ms 6480 KB Output is correct
8 Correct 3 ms 6480 KB Output is correct
9 Correct 2 ms 6480 KB Output is correct
10 Correct 2 ms 6480 KB Output is correct
11 Correct 2 ms 6480 KB Output is correct
12 Correct 3 ms 6736 KB Output is correct
13 Correct 2 ms 6480 KB Output is correct
14 Correct 13 ms 7244 KB Output is correct
15 Correct 27 ms 7880 KB Output is correct
16 Correct 39 ms 8648 KB Output is correct
17 Correct 45 ms 11092 KB Output is correct
18 Correct 46 ms 11204 KB Output is correct
19 Correct 57 ms 11204 KB Output is correct
20 Correct 45 ms 11068 KB Output is correct
21 Correct 43 ms 11204 KB Output is correct
22 Correct 40 ms 10616 KB Output is correct
23 Correct 45 ms 10692 KB Output is correct
24 Correct 30 ms 10692 KB Output is correct
25 Correct 31 ms 10664 KB Output is correct
26 Correct 32 ms 10948 KB Output is correct
27 Correct 47 ms 11244 KB Output is correct
28 Correct 46 ms 11204 KB Output is correct
29 Incorrect 36 ms 11228 KB Output isn't correct
30 Halted 0 ms 0 KB -